Stir together picante sauce and beans. Arrange lettuce on a 12 inch
platter, leaving a 2 inch rim on the edge. Spread bean mixture over
lettuce, making a layer about 1/4 inch thick. Then layer sour cream
and avocado dip. Top with cheese, onion, and olives. Cover and chill
up to 24 hours. Before serving arrange tomatoes on top. Arrange
chips on a platter around spread.